Hard hat cover



FIG. 1 is a top plan view of a hard hat cover showing our new design.

FIG. 2 is a side elevational view, the opposite side being a mirror image thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is enlarged detailed view of the encircled portion shown in FIG. 1. 

The ornamental design for a hard hat cover, as shown and described. 